Question

Simplify the following. (x²+2x)-(x²-7x)​

Answer 1

9x

Explanation:

(x² + 2x) - (x² - 7x) ← distribute parenthesis

= x² + 2x - x² + 7x ← collect like terms

= 9x

Answer 2

9x

Explanation:

( x ² + 2 x ) - ( x² - 7 x )

Simply the expression

• ➻ ( x ² + 2 x ) - ( x² - 7 x )

Remove unnecessary parantheses

• ➻ x² + 2x - x² + 7x

combine like terms

• ➻ x² - x² + 2x + 7x
• ➻ 9x